Question

Given ADEF, if DE = 50 inches and EF = 19

inches, what is m D to the nearest tenth
of a degree?
E
D
F
A. 16.1
B. 18.5
C. 20.7
D. 22.3

Answer 1

22.3

Explanation:

From trigonometry :

The angle D can be obtained thus ;

Sin D = opposite / hypotenus

Sin D = 19 / 50

Sin D = 0.38

D = Sin^-1(0.38)

D = 22.33